Cabrita, P. (2020) – Holocrine secretion and kino flow in angiosperms: their role and physiological advantages in plant defence mechanisms. Trees 34, 1183–1204 (2020), doi.org/10.1007/s00468-020-01990-z.
Dr. Paulo Cabrita
Dr. Paulo Cabrita started working at the IAPN on the 1st of August 2018 on the project “The application of digital and sensing methods in plant nutrition” as well as other projects focused on the water-use efficiency of crop plants.
When plants display visible symptoms of stress, they can already be seriously and in some cases irreversibly affected. Knowledge and understanding of leaf optical properties allows for
non-destructive presymptomatic monitoring of plant physiological changes by using current imaging techniques. In this respect, thermal, reflectance and fluorescence imaging have proved their
potential by detecting stress-related changes in leaf optical properties. These imaging techniques can be applied from microscopic to airborne or satellite remote sensing observations. The
development of these methods is thus crucial for crop monitoring, allowing us to alleviate stress at early stages of plant growth and avoiding irreversible damage and thus mitigate yield losses
substantially. Several imaging techniques have been used to detect early signs of stress by monitoring changes in water status, photosynthetic pigment concentration and efficiency, accumulation
of secondary metabolites, nutrient status, or structural modifications. Complemented with statistical tools and phenology, soil, and weather data, these methods are used to evaluate the effect of
fertilization on productivity and to determine critical nutrient ranges for maintaining physiologically important processes.
Previously and using his expertise and interdisciplinary experience in plant physiology, Dr. Paulo Cabrita worked in Darmstadt on the application and development of remote sensing methods to monitor and determine morphological and physiological parameters both on test trials as well as on field level in forests and crops. These methods involved evaluations of plant development and plant health by assessing yield, nutrient status and drought stress as well as the occurrence of diseases and the effects of treatments (e.g. fertilization, fungicides). Dr. Paulo Cabrita obtained his Ph.D. in 2011 with the thesis “Experimental and theoretical studies of phloem transport with the inclusion of lateral solute exchanges and apoplastic conditions” at the Justus Liebig University Giessen. His research work, done at the Institute for Bio- and Geosciences (IBG 2): Plant Sciences of the Forschungszentrum Jülich, focused on the factors affecting water and solute exchange happening in the phloem in plant stems through experimental (e.g. radioisotope labelling, water and gas exchange measurements) and theoretical (mathematical modelling) approaches.
Publications in refereed journals and refereed conference proceedings.
Cabrita, P. (2019) – A model for resin flow. In: Ramawat, K., Ekiert, H., Goyal, S. (eds) Plant Cell and Tissue Differentiation and Secondary Metabolites, Reference Series in Phytochemistry, Springer, Cham, Switzerland, doi.org/10.1007/978-3-030-11253-0_5-1.
Cabrita, P. (2018): Resin flow in conifers. Journal of Theoretical Biology 453:48-57, doi.org/10.1016/j.jtbi.2018.05.020.
Cabrita, P.; Thorpe. M. & Huber, G. J. (2013): Hydrodynamics of steady state phloem transport with radial leakage of solute, Front. Plant Sci. 4:531. doi: 10.3389/fpls.2013.00531
Huber, G.; Cabrita, P. & Thorpe, M. (2013): Impact of radial solute exchange on steady state phloem transport. 9th International Workshop on Sap Flow, June 4th - 7th, Ghent, Belgium.
Thorpe, M.; De Schepper & V., Cabrita, P. (2012): Lateral exchanges of carbon. 2nd International "Think Tank" on Physics and Physiology of the Phloem (PPP), July 11th - 13th, Pullman WA, USA.
Thorpe,M. R.; Hafke, J. B.;Furch, A. C. U.;Föller, J.; Cabrita, P.; Minchin, P. E. H.; van Bel, A. J. E.; Beneteau, J.; Renard, D. & Dinant, S. (2010): Briefly Arresting: The Mechanism for Transient Cessation of Phloem Transport after Abrupt Stimuli Remains Mysterious, Other Than in Legumes Where Calcium Triggered Dispersion of Forisomes is Responsible. 2nd International Conference on Plant Vascular Biology (PVB2010), July 24th - 28th, Columbus, USA, p. 27.
Cabrita, P. (2021): Non-invasive assessment of the physiological role of leaf aerenchyma and ist relation to plant water status. Annual Meeting of the German Society of Plant Nutrition (DGP)-Online. September 22nd-24th, Kiel, Germany.
Cabrita, P., Tränkner, M. (2021): Effect of magnesium on nitrogen uptake and crop yield in spelt (Triticum spelta L.) using remote sensing methods. Annual Meeting of the German Society of Plant Nutrition (DGP)-Online. September 22nd-24th, Kiel, Germany.
Cabrita, P.; Elm, C.; Erasmi, S. & Tränkner, M. (2019): Study of Crop Response to Magnesium Fertilization through Remote Sensing Methods. Annual Meeting of the German Society of Plant Nutrition (DGP), September 25th – 27th, Berlin, Germany.
Cabrita, P.; Huber, G. & Thorpe, M. (2012): Modelling Münch Merrily – or with Tears? 2nd International "Think Tank" on Physics and Physiology of the Phloem (PPP), July 11th - 13th, Pullman WA, USA.
Cabrita, P.; Thorpe, M.; Schröder, W.; Schneider H. & Schurr, U. (2007): A Perfusion System for Monitoring Phloem-Xylem Interactions. International Conference on Plant Vascular Biology, July 19th - 23th, Taipei, Taiwan, p. 51.
Cabrita, P.; Madeira, V. M. C. & Vicente, J. A. F. (2004): PIMAC acts as an alternative or complementary pathway of succinate transport in energized potato tubers mitochondria. Proc. of the 14th National Congress of Biochemistry, December 2nd - 4th, Vilamoura, Portugal, p. 42.
Quinta-Ferreira, M.E.; Matias, C. M.; Cravino, J.P. & Cabrita, P.J. (1995): Effect of Nifedipine on Calcium Transients from CA1 Area of the Hippocampus. Proc. of the 1st Portuguese-Spanish Biophysics Congress, December 4th - 7th, Lisboa, Portugal, p.86.
Quinta-Ferreira, M.E.; Matias, C. M.; Cravino, J.P. & Cabrita, P.J. (1995): Fura-2 Calcium Signals from Hippocampal CA1 Neurons. Proc. of the 2nd Reunion of Portuguese Neurosciences Society, October 19th - 20th, Estoril, Portugal, p.23.
Cabrita, P. (2011): Experimental and theoretical studies of phloem transport with the inclusion of lateral solute exchange and apoplastic conditions, Dissertation, Justus-Liebig-Universität Gießen, Gießen, Germany, http://geb.uni-giessen.de/geb/volltexte/2012/8566/.